Add 27/56 and 63/70
27/56 + 63/70 is 387/280.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 70 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
27/56 = 27 × 5/56 × 5 = 135/280 - Likewise, for the 2nd fraction, since 70 × 4 = 280,
63/70 = 63 × 4/70 × 4 = 252/280 - Add the two like fractions:
135/280 + 252/280 = 135 + 252/280 = 387/280 - So, 27/56 + 63/70 = 387/280
In mixed form: 1107/280
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56+63/70 81/56+63/70